MAINT-1491 Add Radeon HD 7xxx chips, get rid of "ATI Technologies" catch all, split up NVIDIA GT(X) 6xx series into mobile/desktop.

MAINT-1491 Integration of statistically generated GPU table -- enable shadows by default where appropriate.

The user's custom dictionary and ignore list are now independent of the primary dictionary.

STORM-276 FIXED Main dictionary combobox in spell check settings floater doesn't sort dictionaries by name

EXP-1953: Altering the behavior of building an LLTextBase such that icons are appended in place rather than prepended out of context.